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F. J. JACKSON & W. E. WRIGHT.

Wash Boiler, No. 240,518. P at'ented Avpril=26, 188|.

NFETERS. PHOT0-LIHOGRAPHEH, WASHINGTON. DV C?4 UNITED STATES PATENTOFFICE.

FREDERICK J. JACKSON, OF TARRYTOWN, AND WILLIAM H. WRIGHT, OFSAUGERTIES, NEW YORK.

WASH-BOILER.

SPECIFICATION forming part of Letters Patent No. 240,518, dated April26, 1881.

Application tiled February 12, 1880.

To all 'whom it 'may concern Beit known that we, FREDERICK J. JACK- SON,of Tarrytown, Westchester county, State of New York, and WILLIAM H.WRIGHT, of Saugcrties, in Ulster county, in said State, have inventedcertain new and useful Improvements in Wash-Boilers, of which thefollowing is a specification.

The object of our invention is to construct,

the bottom of the boilerin an improved manner, whereby great strength,durability, and efficiency, as well as cheapness of construction, willbe attained, while embodying a formation specially suited to produce anenergetic fountain action on the well-known principle offountain-boilers.

To this end the main feature of our invention may be stated. to consistin constructing a wash-boiler with acast metal (preferably castiron)bottom, joined to sheet-metal sides by preference. In forming thisbottom with a downward depression to enter the fire-chamber of thestove, and covering this depression Within the boiler, thus forming afountainchamber directly in the boiler-bottom itself, to one end ofwhich the cooler water of the boiler may be admitted, while the water,becoming highly heated in this chamber, may be discharged through anozzle in a foaming stream over the top of the clothes to again returnto the fountain-chamber in the wellknown manner of fountain-boilers.

Our-invention also consists in the special formof this depression orfountain-chamber in the boiler-bottom, and in several other details'ofthe boiler, as hereinafter fully set forth.

Figure l of the drawings annexed presents a' plan View of Iny improvedboiler with the cover removed. Fig. 2 is an inverted planof the bottomthereof. Fig. 3 is a vertical diagonal section on line a: m of Fig. l,the cover applied, and aguard-rack adapted to overlie the clothes shownin place. Fig. 4 is a plan View of the guard-rack removed.

The boiler, as illustrated, is made in the usual oblong shape, withrounded ends; but it maybe made in other shapes when desired. The bottomof the boiler is preferably formed of cast-iron, which is bothgalvanized and tinned, while the sides are preferably made of the usualsheet metal joined to the edges of the cast bottom.

The cast-iron bottom A may be formed with the usual depression to enterthe lire-chamber of the stove; but in case of a fountain-boiler, thedepression is'preferably made in a special form. We,however, prefer toadopt the novel form illustrated, which is that of a broad corrugationof sinuous or iiat S shape, as seen best in Fig. 2, which providesgreater heatingsurface, and may be used either in the ordinary boiler orin the fountain-boiler.

rIhe cast-metal bottom A is also preferably formed, as shown in Fig. 3,with a raised rabbeted edge, c, over which the bottom edge ofthesheet-metal sides is tuljned, and soldered both inside and out. Thisconstruction renders the union of the bottom and sides Very secure, and

raises and protects the joint from contact with the stove-top, wherebyit is protected from eX- cessive heat and abrasion, as will be readilyunderstood.

It may now be readily perceived that in constructing the bottom of theboiler of cast-iron we secure the important advantages of cheapness,strength, durability, and ease of handling. r.Ihe bottom being cast inone piece, of inexpensive metal, is thus much cheaper than the usualsheet-metal bottoms formed by dies; and, moreover, this cast bottom ismuch better able to resist wear, and is not liable to be injured byabrasions or rough usage, or to be punctured by contact with sharpobjects; and hence the boiler can be slid on or off the stove withoutrequiring to be bodily lifted on or off,

so that it may thus be handled with much greater ease. On the contrary,the ordinary sheet-metal bottoms are, as is well known, easily injuredor punctured by rough abrasions or contacts, and require carefulhandling in lifting on or oft' the stove. We prefer, as will be obvious,to construct the boiler-bottom of cast-iron, on account of its strengthand cheapness; but it may also be made of cast-brass or similar metal,which will secure the same advantages above setforth.

Now, in a fountain-boiler, we cover the cavity of the depression ordepressions del within the boiler by a plate or plates, e e' e2, levelwith the general face of the bottom, thusform- IOO ' cavities, as shownin Figs. l and 3.

ing a confined boiling or fountain chamber directly in and forming partof the bottom vitself. The cover of this fountain-chamber is preferablymade of cast metal, in three pieces or plates, e e e2, one to eachgroove or depression, which are soldered in place over the An inlet isformed at one end of this cavity or chamber, as shown at f, by a rise oroverbend in the plate e, which inlet is guarded by short bars g g, caston the bottom, and forming a strainer, to prevent the entrance of anyfabric therein. The outlet of the cavity is at the opposite end, throughthe nozzle h, which rises from a bulge on the plate c2 over thedischarging end of the cavity, and is bent at the top to discharge thefoaming stream of Water which boils out of the cavity orfountain-chamber over the top of the clothes in the usual manner ofwash-boiler fountains.

It will be seen from Figs. l, 2, and 3 that this fountain-chamber isdirectly inthe bottom ofthe boiler, and that it is of sinuous form ordirection, and tapers from end to end, Widening toward the discharge.The Water, therefore, which enters the chamber becomes exposed to thedirect heat of the fire, and taking a sinuous passage through thechamber becomes very quickly and highly heated therein, and as it findsan easier passage toward the discharge, where the passage widens, theboiling stream thus rushes out of the discharge-nozzle in anuninterrupted current of great volume and steadiness, which isdischarged over and descends through the clothes With anv energeticwashing action. This construction, as may be inferred, causes the Waterto become more highly heated than usual in fountain-boilers, and insuresa more certain and voluminous flow, so that the improved boiler ispractically found to wash and bleach clothes in a superior manner Withthe use of ordinary suds, and Without the necessity of rubbing, thusforming a simple and eficient washing-machine.

We prefer to construct the fountain-chainber in the boiler-bottom notonly of sinuous continuation, but also curved in cross-section, eachbend thus presenting a distinct surface, as seen best in Figs. 2 and 3,as this provides greater heating-surface; but, if desired, the

` fountain-chamber may be formed by one broad flat depression, which maybe divided by vertical partitions or webs cast on the bottom, so as toform a sinuous passage through the same.

To properly hold the mass of clothes down in the boiler and preventtheir becoming ruffled up by the strong stream from the nozzle, weemploy an open frame, t', ot' Wood, (shown best in Fig. 4,) andpreferably formed of two parallel longitudinal bars joined by twoconnecting cross-bars, which frame is supported on short lugs orshoulders m m, projecting from the sides of the boiler, near the top, asshown in Figs. l and 3. These shoulders, as

shown in Fig. 3, are double, consisting of an overlying and underlyingshoulder, the lower ones being longer than the upper ones, so that theends of the cross-bars of the frame being placed on the lower ones mayber then slipped along under the upper ones, thus retaining the framesecurely in place.

We also provide the edge of the boiler-cover with a marginal packing, offelt, rubber, or other suitable material, to render the tit of the coverin the boiler steam-tight, and thus prevent the escape of steam and Wealso prefer to t the cover with spring-catches n, n, Which spring overand catch upon the bead around the top edge of the boiler, thus holdingthe lid down securely.

We prefer, also, to attach to the boiler-cover a flexible hose, 7c, ofcanvas or rubber, terminated with a metallic thimble, which may becoupled with a thi mble projecting from the stove pipe, and thus serveto conduct lthe steam from the boiler tothe ilueand prevent itsobjectionable escape into lthe apartment.

It will be readily understood that While We prefer to construct theboiler-bottom of castiron or similar cast metal, yetit may also beformed vof sheet Lmetal iu several pieces, soldered together inthedescribed form, Without departing from the described features of ourinvention as applicable to fountain-boilers.

We do not claim herein a sunken washboiler bottom having afountain-chamber Within its pit or depression, and provided with a topplate having an elevated end forming Van inlet or inlets to saidchamber, and supported by stud-pins, which form strainers at saidinlets; nor a Wash-boiler having a sunken bottom, with afountain-chamber within its pit or depression, and provided with anelevated ontlet projecting over the marginal 'loor of lthe bottom, as weintend to claim thesefeatures in another application for patent.

What We claim as our invention is- 1. A wash-,boiler having a bottomformed with a broad longitudinal groove, depression, or cavity of asinuous continuation and curved section closed by a suitable cover, andprovided with an inlet at one end and an outlet at the other,substantially as and for thepurpose set forth.

' 2. A fountain Wash-boiler havinga bottom formed With a permanentcavity or fountainchamber of sinuous continuation and in part integralwith said bottom, substantially as herein shown and described.

3. A fountain wash-boiler having at or in its bottom a fountain-chamberof sinuous continuation and of a diameter increasing from the inlet tothe outlet, substantially as andfor the purpose herein set forth.

F. J. JACKSON. W. H. WRIGHT.

Witnesses W. S. BIRD, F. B. RAY.

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